Ball bearing



Patented Oct. 4, 1927..

l .UNITED ifi.

WILHELM RIEFFERT, OF COLOGNE VINGST, GERMANY, ASSIGNOR TO DR. H. DUX COM- i PAN-Y, INC., OF JACKSONVILLE, FLORIDA.

BALL BEARING.

Application led February 24, 1926, Serial No. 90,354, and in Germany February 28, 1925.

The purpose of the presentv invention is 'a subdivided ball or roller bearing, the essential feature of which consists in that the points at which the bearing halves are divided, are detachably connected together by inserted connecting means adapted to be drawn together or tightened, whereby .the contacting surfaces of the divided or split halves of the bearing may be undulated, zigzag or flat.

This connecting means comprises two bridged cones which are forced by screws into corresponding conical openingsof the halves superposed on each other with flat or corrugated contacting surfaces.

to the shaft is entirely precluded, bythe corrugated (undulated') form of the halves,

and smooth operation of the balls .or roll.-- ers is assured, without danger of injuring' the races or the'balls and rollers.

By means of this invention, it will be possible in the future, to mount a ball or roller bearing on shafts which, by reason of curves, contracted portions, tap or flange mountings, do not permit the application of an ordinary ballor roller bearing. The new twopart ball or roller bearing maybe easily applied or added to. shafts, without undue removal and replacing, with the same ac curacy and facility as a closed ball bearing.,

An exemplary embodiment of the subject ofthe invention is illusltratled in the accoman. in drawing, in w ic p is a side elevation of a subdivided bearing.

Fig. 2 is a lateral elevation with undulated contacting surfaces.

Fig. 3 shows zig-zag contacting surfaces.

Fig. 4 is a flat surface at the vpoint of contact. i n

Fig. 5 shows a partial inner view of' a bearing race with undulated contacting surfaces, and

Fig. 6 a sectional view of .connecting means adapted to tighten the two halves of the race-way. n

The annular ball bearing shown on Figs. l and -2 consists of an outer race l. andan inner race 2. Each individual race consists of two halves, whereby their contacting surfaces ma be 'undulated, zigzag, notched, or at. xial displacement of the two race halves is completely precluded in all but the last case. The undulated sections are shown -in Figs. 2 and 5, while the notched and flat Inj ury forms are illustrated in Figs. 3 and 4 respectively. The rigid, but detachable connection of the two race halves of the annulus is effected by a bridging means, which operates to tighten, and which, as may be seen from Figs. 2 and 6, consistsof two con.

nected cones 3, 4, adapted to be rigidlyconnected together to form one piece by means of a connecting segment 5. According to the external form of the bridge each bearing race is provided at the sides, at the division points o f each race, with two oppositely disposed i'itted depressions, which extend'over the joints and in which 'the bridge is inserted and attached by means of screws 6, 7, so

thereby, the pressure of the balls or rollers,

on passage from one race halfto the other, is uniformly distributed over the points of section on theV race surfaces of both race halves, thus preventing premature wear or deviation of the ball or roller grooves at the points of section.

lt is immaterial to the subject of this in vention whether the race be subdivided into two or into more segments. For very large sized ball-bearings it may be advantageous to make 'the race of a eat number of parts.

The'advantages oied lby a subdivided ball or roller bearing are that it may be easily mounted on any shaft without changing position and without jamming, and the entire bearing or the balls per se may be easily interchanged. The section surfaces may be made inthe plane of the race diameter or somewhat outside thereof.

lt is also to be noted that the production of this two-part roller or ball bearing requires no special apparatus, but any machine shop with modern lathe equipment can easily construct them.

Having thus described my invention, what l claim is:

l. A ball orv roller bearin, comprising a race formed of a plurality o mental secconical tions with conical depressions formed in the sides of the race sections near` the joints, and removable connecting means with conical projections bridging the joints at the side of the race wlththe conical projections seated in the respectively shaped depressions in the sections for securing and drawin the` same together.

2. A all or roller bearin comprising a race formed of a plurality o segmentalrsections contacting lwith each other across a uniformly irregular surface and having epressions formed in the sides of the race sections near the joints, and removable connecting means with conical projections bridging the joints at the side of therace with the conical the respectively shape rojections seatedin depressions 1n the sections for securing and drawing the same together.

jections bridging the joints at the side of the race with the conical projections seated in the respectively shaped depressions-in the sections, and screws extending through the projections and into `the-depressions for fastening the bridging connecting means to the sections for securing and drawing them toy gether. w

In testimony 'whereof I have signed my name to this specification.

' WLHELM RIEFFERT. 

